NSB.ShowProgress("Loading....") +loadingSpinner

Is there a way to include a loadingSpinner with NSB.ShowProgress ?

Maybe we could have something like…
NSB.ShowProgress("Loading....", loadingSpinner.gif)

SOLVED:

/* NSB.ShowProgress Dialog */
#NSB_Progress {
 height: 100px;
 text-align: center;
 background-image: url("images/loading.gif");
 background-repeat: no-repeat;
 background-position: center;
}